golang:将struct指针转换为interface {} |

ANi*_*sus 48

*foointerface{}

f := &foo{}
bar(f) // every type implements interface{}. Nothing special required

*foo

func bar(baz interface{}) {
    f, ok := baz.(*foo)
    if !ok {
        // baz was not of type *foo. The assertion failed
    }

    // f is of type *foo
}

baz

func bar(baz interface{}) {
    switch f := baz.(type) {
    case *foo: // f is of type *foo
    default: // f is some other type
    }
}

• @JuandeParras:如果你不知道`baz`可能是什么类型,那么你将不得不使用反射(`import'反映"`).这就像`encoding/json`这样的包可以在不事先知道的情况下基本上编码任何类型. (5认同)

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